which wasn't even an industrial city. we had thousands of americans dying every year in smog events. >> yeah. >> these are -- i was -- i trained hawks from when i was a little boy, i, and i continue to do that today, and i remember when i used to visit my uncle in the white house, and in 1962 i wrote my uncle a letter and said to him that i wanned to write a book about pollution, and i'd like to meet with him about that issue, and he, i was eight years old. [laugh] he had me in to. >> he found time on the calendar. >> he found time on the calendar, had me in to the oval office. whenever i visit the white house i always look down the old post office building in washington, d.c. because there were pair of eastern and adam peregrine falcons. >> yeah. >> .which was the most spectacular predatory bird in north america. it flew two hundred and fifty miles an hour. it had salmon pink with a beautiful white cere, and i could watch those birds come down pennsylvania avenue, pick pigeons out of the air in front of the white house f